ARM i.MX6Q: Fix IOMUXC GPR1 defines for ENET_CLK_SEL and IPU1/2_MUX

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
usb: gadget: set composite to NULL when usb_gadget_register_driver fails

So that it can be tried later again.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
usb: gadget: propagate error code from usb_composite_register

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>